30'000 different IP adresses per each day of the weekend [accessed] Overpass API

yep, that's in line with what I'm seeing in overpass turbo's recent access logs (see the chart below; the pre-event base level is around ~500 visits per day ^_^). The bulk of new users seems to come from the US, though.

@Jojo4u: You're free to do everything you want with the generated charts as long as you comply with ODbL's minimal requirement for produced works, i.e. citing OSM as the data source. A link back to this blog article and/or the website taghistory.raifer.tech is very much appreciated, though. :)

How did you define the bbox of a city? Because using the Overpass API, I would get significantly smaller numbers of objects (e.g. 18k for Essen or 31k in Dortmund: http://overpass-turbo.eu/s/blX). The numbers are even smaller when using exact city limits (e.g. 12k for Dortmund: http://overpass-turbo.eu/s/blW or 18k for Yokohama).

There appears to be a small typo in the MapCSS code above. To display the text for all features (not just nodes) there must be an additional comma between way and relation: {{style: node, way, relation { text: fixme } }} should do the trick.

max1e, yes, you should be able to install and run sed also on Windows (ask google). This visualization is done only for nodes because the raw data analysis was done (by Frederik Ramm, username: woodpeck) only for nodes. If you want also ways, you'd have to repeat the analysis step, which could be a quite extensive task, I suppose…

Yes, but you can just pan a couple of hundred meters to the South (or in any other direction) and you have the same situation again: Dozens of version 1, imported buildings in low quality, version 1, imported landuse polygons. This is what I'm seeing basically anywhereelse in rural France.